/* digitARCH — hand-written stylesheet. No framework, no build step. */

@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/opensans-400.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/opensans-600.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/opensans-700.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122;
}
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/montserrat-400.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122;
}
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/montserrat-700.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+2000-206F, U+20AC, U+2122;
}

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f6f7;
  --color-text: #1a1a1a;
  --color-text-muted: #62666b;
  --color-accent: #0c77e6;
  --color-dark: #0d0d0f;
  --color-border: #e7e7e9;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --container-w: 1180px;
  --header-h: 76px;
  --radius: 4px;
  --transition: 220ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: light; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-text-size-adjust: 100%;
}

/* ---------- accessibilità: focus visibile e skip link ---------- */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}
.site-footer :focus-visible,
.portfolio-single-hero :focus-visible {
  outline-color: #fff;
}
.legal-meta {
  font-size: 13.5px;
  color: var(--color-text-muted);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 28px;
}
.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  z-index: 200;
  padding: 12px 20px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius);
  transition: top var(--transition);
}
.skip-link:focus {
  top: 12px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--color-text);
}
p { margin: 0 0 1em; }
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: background var(--transition), color var(--transition);
}
.btn:hover { background: var(--color-accent); color: #fff; }
.btn-solid { background: var(--color-accent); color: #fff; }
.btn-solid:hover { background: #095bb3; border-color: #095bb3; }

.btn-tour {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 34px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #1a8bff, #0958b8);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 10px 28px rgba(12,119,230,0.35);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-tour:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(12,119,230,0.45); }
.btn-tour:active { transform: translateY(-1px); }
.btn-tour svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  animation: spin-slow 6s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .btn-tour svg { animation: none; }
}
.eyebrow {
  display: block;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section { padding: 96px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-title { font-size: clamp(28px, 4vw, 42px); }
.section-lead {
  max-width: 620px;
  color: var(--color-text-muted);
  font-size: 17px;
}
.center { text-align: center; }
.center .section-lead { margin-left: auto; margin-right: auto; }

/* ---------- reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0);
  transition: background var(--transition), box-shadow var(--transition), height var(--transition);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.site-header.is-scrolled,
.site-header.is-solid {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 0 var(--color-border);
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; min-height: 44px; font-family: var(--font-display); font-weight: 700; font-size: 18px; }
.brand img { height: 43px; width: auto; }
.site-header.is-scrolled .brand,
.site-header.is-solid .brand,
.site-header.is-scrolled .nav-link,
.site-header.is-solid .nav-link,
.site-header.is-scrolled .nav-toggle span,
.site-header.is-solid .nav-toggle span { color: var(--color-text); }
.brand { color: var(--color-text); }
.site-header:not(.is-scrolled):not(.is-solid) .brand,
.site-header:not(.is-scrolled):not(.is-solid) .nav-link { color: var(--color-text); }

.main-nav { display: flex; align-items: center; gap: 36px; }
.nav-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  padding: 6px 0;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute; left: 0; right: 100%; bottom: -2px;
  height: 2px; background: var(--color-accent);
  transition: right var(--transition);
}
.nav-link:hover::after { right: 0; }

/* ---------- selettore di lingua ---------- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--color-text);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.lang-switch:hover {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: none; border: 0; cursor: pointer;
  padding: 0;
}
.nav-toggle span { width: 24px; }
.nav-toggle span {
  display: block; height: 2px; width: 100%;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}
.site-header.is-scrolled .nav-toggle span,
.site-header.is-solid .nav-toggle span { background: var(--color-text); }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: #fff;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 40px 24px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
  }
  .main-nav .nav-link { color: var(--color-text); font-size: 20px; padding: 10px 0; min-height: 44px; display: flex; align-items: center; }
  .nav-open .main-nav { transform: translateX(0); }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  min-height: 92dvh;
  display: flex;
  align-items: center;
  color: var(--color-text);
  background: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  z-index: 0;
}
/* velo bianco solo dietro al testo, per garantire il contrasto su mobile
   quando la foto scorre sotto la colonna di testo */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0.96) 0%, rgba(255,255,255,0.9) 22%, rgba(255,255,255,0.45) 40%, rgba(255,255,255,0) 55%);
  z-index: 1;
}
@media (max-width: 760px) {
  .hero::before {
    background: linear-gradient(180deg, rgba(255,255,255,0.96) 0%, rgba(255,255,255,0.88) 55%, rgba(255,255,255,0.75) 100%);
  }
}
.hero .container { position: relative; z-index: 2; padding-top: var(--header-h); }
.hero-quote {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(22px, 3.4vw, 34px);
  max-width: 820px;
  line-height: 1.4;
  margin-bottom: 18px;
}
.hero-quote-attr {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.15em;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 56px;
}
.hero-mission {
  font-size: clamp(20px, 2.6vw, 26px);
  max-width: 640px;
  font-weight: 400;
  color: var(--color-text);
}
.hero .container { max-width: var(--container-w); }
.hero-quote, .hero-mission { max-width: min(560px, 60%); }
@media (max-width: 760px) {
  .hero-quote, .hero-mission { max-width: 100%; }
}
.hero-scroll-cue {
  position: absolute;
  bottom: 32px; left: 50%;
  z-index: 2;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  opacity: 0.85;
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ---------- portfolio intro / filter ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 40px 0 48px;
}
.filter-btn {
  padding: 12px 20px;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  background: #fff;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.filter-btn.is-active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.portfolio-card {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  background: var(--color-bg-alt);
}
.portfolio-card.is-hidden { display: none; }
.portfolio-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 500ms ease;
}
.portfolio-card:hover img { transform: scale(1.06); }
.portfolio-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.05) 55%, rgba(0,0,0,0) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  color: #fff;
}
.portfolio-card-title { font-family: var(--font-display); font-weight: 700; font-size: 18px; margin: 0 0 4px; }
.portfolio-card-meta { font-size: 13px; color: rgba(255,255,255,0.8); }

/* ---------- thanks / quote section ---------- */
.thanks-section {
  background: linear-gradient(135deg, #eef1f6, #dfe6ee);
  text-align: center;
}
.thanks-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(18px, 2.2vw, 22px);
  max-width: 700px;
  margin: 28px auto 0;
  color: var(--color-text);
}
.thanks-quote-attr { display: block; margin-top: 10px; font-weight: 700; color: var(--color-text-muted); font-size: 14px; }

/* ---------- process steps (digitarch) ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-top: 48px;
}
.process-step { text-align: center; }
.process-step-num {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 20px;
}
.process-step h3 { font-size: 18px; margin-bottom: 6px; }
.process-step p { color: var(--color-text-muted); font-size: 15px; margin: 0; }

/* ---------- benefits / awards ---------- */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-top: 48px;
}
.benefit-card { padding: 32px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); }
.benefit-card h3 { font-size: 19px; }
.benefit-card p { color: var(--color-text-muted); font-size: 15px; margin: 0; }

.awards-list { margin-top: 40px; border-top: 1px solid var(--color-border); }
.awards-item {
  display: flex;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
  flex-wrap: wrap;
}
.awards-year { font-family: var(--font-display); font-weight: 700; color: var(--color-accent); min-width: 160px; }
.awards-desc { color: var(--color-text-muted); }

/* ---------- counters ---------- */
.counter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
  margin-top: 48px;
  text-align: center;
}
.counter-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 52px);
  color: var(--color-accent);
}
.counter-label { color: var(--color-text-muted); font-size: 14px; text-transform: uppercase; letter-spacing: 0.04em; }

/* ---------- portfolio single page ---------- */
.portfolio-single-hero {
  position: relative;
  height: 60vh;
  min-height: 380px;
  color: #fff;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.portfolio-single-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.7), rgba(0,0,0,0.15));
  z-index: 1;
}
.portfolio-single-hero .container { position: relative; z-index: 2; padding-bottom: 48px; padding-top: var(--header-h); }
.portfolio-single-meta { font-family: var(--font-display); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; font-size: 13px; opacity: 0.85; margin-bottom: 10px; }
.portfolio-single-title { font-size: clamp(30px, 4.5vw, 48px); margin: 0; color: #fff; }

.portfolio-single-body {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr);
  gap: 56px;
  padding: 72px 0;
}
.portfolio-single-body .description p {
  color: var(--color-text-muted);
  font-size: 16.5px;
  line-height: 1.8;
  max-width: 62ch;
  margin-bottom: 1.4em;
}
.portfolio-single-body .description p:first-of-type {
  font-size: 18px;
  color: var(--color-text);
}
.portfolio-attrs { border-top: 1px solid var(--color-border); }
.portfolio-attr { padding: 20px 0; border-bottom: 1px solid var(--color-border); }
.portfolio-attr-label { font-family: var(--font-display); font-weight: 700; font-size: 12px; letter-spacing: 0.08em; color: var(--color-text-muted); text-transform: uppercase; display: block; margin-bottom: 6px; }
.portfolio-attr-value { font-size: 15px; }
@media (max-width: 860px) {
  .portfolio-single-body { grid-template-columns: 1fr; }
}

.back-link { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; color: var(--color-text-muted); font-size: 14px; margin-bottom: 12px; }
.back-link:hover { color: var(--color-accent); }

/* ---------- breadcrumb ---------- */
.breadcrumb {
  font-size: 13.5px;
  color: var(--color-text-muted);
  padding: 20px 0 0;
}
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 0 8px; }
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb a, .breadcrumb [aria-current="page"] {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.breadcrumb li + li::before { content: '/'; color: var(--color-border); }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent); text-decoration: underline; }
.breadcrumb [aria-current="page"] { color: var(--color-text); }

/* ---------- navigazione prev/next tra le schede ---------- */
.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  border-top: 1px solid var(--color-border);
  padding: 32px 0 72px;
}
.pager-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
}
.pager-link:hover { border-color: var(--color-accent); background: var(--color-bg-alt); }
.pager-link.is-next { text-align: right; align-items: flex-end; }
.pager-label {
  font-family: var(--font-display);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-text-muted);
}
.pager-title { font-family: var(--font-display); font-weight: 700; font-size: 15.5px; }
@media (max-width: 640px) {
  .pager { grid-template-columns: 1fr; padding-bottom: 48px; }
  .pager-link.is-next { text-align: left; align-items: flex-start; }
}

/* ---------- pagina 404 ---------- */
.error-page {
  min-height: 68vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding-top: var(--header-h);
}
.error-code {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(64px, 14vw, 128px);
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ---------- contact info page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  margin-top: 48px;
}
.contact-card { padding: 28px; border: 1px solid var(--color-border); border-radius: var(--radius); }
.contact-card h3 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 10px; }
.contact-card p { margin: 0; font-size: 17px; }
.contact-card a:hover { color: var(--color-accent); }

/* ---------- simple text page (privacy) ---------- */
.prose { max-width: 720px; }
.prose h2 { margin-top: 1.6em; font-size: 22px; }
.prose p, .prose li { color: var(--color-text-muted); font-size: 16px; }
.prose ul { list-style: disc; padding-left: 1.4em; margin-bottom: 1em; }

/* ---------- footer ---------- */
.site-footer { background: var(--color-dark); color: rgba(255,255,255,0.75); padding: 72px 0 28px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-grid-single {
  grid-template-columns: 1fr;
}
.footer-grid-single .footer-col {
  max-width: 480px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; min-height: 44px; color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 18px; margin-bottom: 14px; }
.footer-brand img { height: 40px; width: auto; filter: brightness(0) invert(1); }
.footer-col h4 { color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 16px; }
.footer-col p, .footer-col a { display: block; font-size: 14.5px; margin-bottom: 8px; color: rgba(255,255,255,0.75); }
.footer-col a:hover { color: #fff; }
.footer-socials { display: flex; gap: 14px; margin-top: 16px; }
.footer-socials a {
  width: 44px; height: 44px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--transition), background var(--transition);
}
.footer-socials a:hover { background: var(--color-accent); border-color: var(--color-accent); }
.footer-socials svg { width: 18px; height: 18px; fill: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 4px 20px;
  padding-top: 16px; font-size: 13px; color: rgba(255,255,255,0.55);
}
.footer-bottom a {
  color: rgba(255,255,255,0.55);
  display: inline-flex; align-items: center;
  min-height: 44px; padding: 0 2px;
}
.footer-bottom a:hover { color: #fff; }
.footer-legal-links { display: flex; flex-wrap: wrap; gap: 4px 20px; }

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- back to top ---------- */
.back-to-top {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  border: 0; cursor: pointer;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 90;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: #095bb3; }

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .portfolio-single-body { padding: 48px 0; }
}

/* ---------- utility usate al posto degli attributi style inline ----------
   Servono a poter servire una CSP senza 'unsafe-inline' su style-src.      */
.u-below-header { padding-top: calc(var(--header-h) + 64px); }
.u-mt-32 { margin-top: 32px; }
.u-ml-12 { margin-left: 12px; }
.u-lead-center { margin: 20px auto 0; }
.u-lead-error { margin: 16px auto 32px; }
.u-prose-narrow { max-width: 820px; margin: 0 auto; }
.u-awards-wrap { text-align: left; max-width: 760px; margin: 40px auto 0; }
.u-thanks-lead { max-width: 640px; margin: 20px auto 0; color: var(--color-text-muted); }
.btn-tour.u-block { margin-top: 24px; width: 100%; justify-content: center; }
.u-flip { transform: rotate(180deg); }

/* ---------- suggerimento di lingua (nessun cookie, nessun redirect) ---------- */
.lang-hint {
  position: relative;
  z-index: 90;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--header-h);
  font-size: 14.5px;
}
.lang-hint-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.lang-hint p { margin: 0; color: var(--color-text-muted); }
.lang-hint-cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-accent);
}
.lang-hint-cta:hover { text-decoration: underline; }
.lang-hint-close {
  margin-left: auto;
  width: 44px; height: 44px;
  border: 0; background: none; cursor: pointer;
  font-size: 22px; line-height: 1;
  color: var(--color-text-muted);
}
.lang-hint-close:hover { color: var(--color-text); }
/* quando il suggerimento è visibile l'hero non deve più stare sotto l'header fisso */
.lang-hint:not([hidden]) + .hero { min-height: calc(92vh - 120px); }